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deepaksoniGuru

Asked: March 19, 2021In: ICSE

If x+y/ax+by=y+z/ay+bz=z+x/az+bx , prove that each of these ratio is equal to 2/a+b unless x + y + z = 0

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exam oriented an important question from ML aggarwal, class 10th, chapter 7, ratio and proportion, Avichal publication In this question ques ...Read more

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deepaksoniGuru

Asked: March 26, 2021In: ICSE

Question 19. (a) In the figure (i) given below, PR is a diameter of the circle, PQ = 7 cm, QR = 6 cm and RS = 2 cm. Calculate the perimeter of the cyclic quadrilateral PQRS.

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This is an important and exam oriented question from Chapter name- circles Topic – Angle properties of circles Chapter number- ...Read more

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deepaksoniGuru

Asked: April 5, 2021In: ICSE

Question 7. (a) In figure (i) given below, quadrilateral ABCD is circumscribed; find the perimeter of quadrilateral ABCD. (b) In figure (ii) given below, quadrilateral ABCD is circumscribed and AD ⊥ DC ; find x if radius of incircle is 10 cm.

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One of the most important and exam oriented question from Chapter name- circles Topic – Angle properties of circles Chapter ...Read more

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deepaksoniGuru

Asked: April 17, 2021In: ICSE

Ques 35(b) In the figure (ii) given below, A, B and C are three points on a circle. The tangent at C meets BA produced at T. Given that ∠ATC = 36° and ∠ACT = 48°, calculate the angle subtended by AB at the centre of the circle.

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One of the most important and exam oriented question from Chapter name- circles Topic – Angle properties of circles Chapter ...Read more

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deepaksoniGuru

Asked: May 9, 2021In: CBSE

Problem 4: Write the sequence with nth term : (i) an = 3 + 4n

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This is the basic and conceptual question from Chapter name- Arithmetic Progression Chapter number- 9 Exercise 9.2 We have been ...Read more

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deepaksoniGuru

Asked: May 27, 2021In: CBSE

Problem 6: Find out which of the following sequences are arithmetic progressions. For those which are arithmetic progressions, find out the common difference(xi) 1^2, 3^2, 5^2, 7^2, …………………

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This is the basic and conceptual question from Chapter name- Arithmetic Progression Chapter number- 9 Exercise 9.3 In this question we ...Read more

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deepaksoniGuru

Asked: June 14, 2021In: CBSE

Question 12. If the nth term of the A.P. 9, 7, 5, …. is same as the nth term of the A.P. 15, 12, 9, … find n.

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This is the basic and conceptual question from Chapter name- Arithmetic Progression Chapter number- 9 Exercise 9.4 In this question we ...Read more

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If x+y/ax+by=y+z/ay+bz=z+x/az+bx , prove that each of these ratio is equal to 2/a+b unless x + y + z = 0

Question 19. (a) In the figure (i) given below, PR is a diameter of the circle, PQ = 7 cm, QR = 6 cm and RS = 2 cm. Calculate the perimeter of the cyclic quadrilateral PQRS.

Question 7. (a) In figure (i) given below, quadrilateral ABCD is circumscribed; find the perimeter of quadrilateral ABCD. (b) In figure (ii) given below, quadrilateral ABCD is circumscribed and AD ⊥ DC ; find x if radius of incircle is 10 cm.

Ques 35(b) In the figure (ii) given below, A, B and C are three points on a circle. The tangent at C meets BA produced at T. Given that ∠ATC = 36° and ∠ACT = 48°, calculate the angle subtended by AB at the centre of the circle.

Problem 4: Write the sequence with nth term : (i) an = 3 + 4n

Problem 6: Find out which of the following sequences are arithmetic progressions. For those which are arithmetic progressions, find out the common difference(xi) 1^2, 3^2, 5^2, 7^2, …………………

Question 12. If the nth term of the A.P. 9, 7, 5, …. is same as the nth term of the A.P. 15, 12, 9, … find n.